Dysgenesis
Pronunciation : Dys*gen"e*sis
Part of Speech : n.
Etymology : [Pref. dys- + genesis.] (Biol.)
Definition : Defn: A condition of not generating or breeding freely; infertility; a form homogenesis in which the hybrids are sterile among themselves, but are fertile with members of either parent race.
Source : Webster's Unabridged Dictionary, 1913